UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                             CURRENT REPORT PURSUANT
                          TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

         Date of Report (Date of earliest event reported): JUNE 13, 2005

                             FLAGSTAR BANCORP, INC.
             (Exact name of registrant as specified in its charter)


           MICHIGAN                     1-16577                38-3150651
 (State or other jurisdiction of    (Commission File        (I.R.S. Employer
         incorporation)                  Number)           Identification No.)


       5151 CORPORATE DRIVE, TROY, MICHIGAN                  48098
     (Address of principal executive offices)              (Zip Code)


                                 (248) 312-2000
              (Registrant's telephone number, including area code)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ]  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[ ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

[ ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[ ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))


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ITEM 4.01 CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANT

On June 13, 2005, Flagstar Bancorp, Inc. (the "Company") was informed by Grant
Thornton LLP ("Grant Thornton"), the Company's independent registered public
accounting firm, that Grant Thornton has resigned as the Company's independent
registered public accounting firm. The Company's Audit Committee is currently in
the process of engaging a new independent registered public accounting firm, but
there can be no assurance that the Company will be able to engage a successor
independent registered public accounting firm prior to the filing due date of
its Quarterly Report on Form 10-Q for the quarter ended June 30, 2005.

The reports of Grant Thornton on the financial statements of the Company for the
past two fiscal years contained no adverse opinion or disclaimer of opinion and
were not qualified or modified as to uncertainty, audit scope, or accounting
principle.

In connection with its audits for each of the two most recent fiscal years and
through June 13, 2005, there have been no disagreements between the Company and
Grant Thornton on any matter of accounting principles or practices, financial
statement disclosure or auditing scope or procedure, which disagreements, if not
resolved to the satisfaction of Grant Thornton, would have caused Grant Thornton
to make reference thereto in their report on the financial statements for such
years.

During the two most recent fiscal years and through June 13, 2005, there have
been no reportable events (as outlined in Regulation S-K Item 304(a)(1)(v)),
other than as follows:

     o    In Item 9A of the Company's Annual Report on Form 10-K, which the
          Company filed with the Securities and Exchange Commission on March 23,
          2005, Management's Annual Report on the Internal Control over
          Financial Reporting stated, and Grant Thornton's report on internal
          controls reiterated, that because of the material weaknesses disclosed
          in those reports, the Company's internal control over financial
          reporting was not effective as of December 31, 2004, based on the
          criteria set forth by the Committee of Sponsoring Organizations of the
          Treadway Commission ("COSO") in Internal Control -- Integrated
          Framework. The Company reported six material weaknesses in the
          Company's system of internal control over financial reporting, which
          are more fully described in Item 9A of the Company's Form 10-K and can
          be summarized as including: (i) deficiencies related to the Company's
          accounting for derivative activities; (ii) deficiencies related to
          recording of accrued interest receivable; (iii) deficiencies related
          to the documentation of the evaluation of the appropriateness of
          accounting estimates; (iv) deficiencies surrounding the recording of
          non-routine journal entries; (v) deficiencies related to validation
          and evaluation of data; and (vi) deficiencies related to company-level
          controls.

     o    In Item 4 of the Company's Quarterly Report on Form 10-Q, which the
          Company filed with the Securities and Exchange Commission on May 10,
          2005 (the "Form 10-Q"), the Company reported that based upon a review
          and evaluation of the effectiveness of the Company's disclosure
          controls and procedures as of March 31, 2005, its principal executive
          and financial officers concluded that the Company's disclosure
          controls and procedures, as designed and implemented, were operating
          effectively as of that date. Grant Thornton has informed the Company
          that management's conclusion regarding disclosure controls may be
          materially misstated. After further consideration of Grant Thornton's
          views, the Company decided to amend the Form 10-Q to report that its
          principal executive and financial officers determined that the
          disclosure controls and procedures were not effective as of March 31,
          2005. Based on discussions with its outside legal counsel and the
          staff of the Securities and Exchange Commission, the Company continues
          to believe that it is within the reasonable discretion of the
          Company's principal executive and financial officers to conclude that
          disclosure controls and procedures are effective notwithstanding
          previously identified material weaknesses in internal control over
          financial reporting. However, the Company is of the view that
          reasonable persons may differ as to whether disclosure controls and
          procedures are effective when internal control weaknesses have been
          previously identified and is aware that other public companies in
          similar situations have reported that disclosure controls were not
          effective as a result of previously reported material weaknesses in
          internal control over financial reporting.






Discussions concerning the aforementioned reportable events have occurred
between representatives of Grant Thornton and the Company's Audit Committee. The
Company intends to authorize Grant Thornton to respond fully to the inquiries of
the new independent registered public accounting firm concerning the reportable
events.

The Company has provided Grant Thornton with a copy of the disclosures made in
this Form 8-K prior to the filing of this Form 8-K and has requested that Grant
Thornton furnish the Company with a letter addressed to the Securities and
Exchange Commission stating whether it agrees with the above disclosures. A copy
of that letter, dated June 15, 2005, is filed as Exhibit 16.1 to this Form 8-K.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

     (c) The following exhibit is being furnished herewith:



Exhibit No.           Exhibit Description
-----------           -------------------
                     
16.1                  Letter from Grant Thornton LLP dated June 15, 2005.







                                    SIGNATURE

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized.


                                          FLAGSTAR BANCORP, INC.

      Dated: June 15, 2005                  By: /s/ Michael W. Carrie
                                                --------------------------------
                                                Michael W. Carrie
                                                Executive Director, Chief 
                                                Financial Officer, and Treasurer





                                 EXHIBIT INDEX




Exhibit Number        Description
--------------        -----------
                     
16.1                  Letter from Grant Thornton LLP dated June 15, 2005.